81400110340

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{372677}}^1$

素因数の和:372916

約数の個数: 48

約数和(自身を含む): 174556412352

約数和(自身を除く): 93156302012

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 163, 268, 326, 335, 652, 670, 815, 1340, 1630, 3260, 10921, 21842, 43684, 54605, 109210, 218420, 372677, 745354, 1490708, 1863385, 3726770, 7453540, 24969359, 49938718, 60746351, 99877436, 121492702, 124846795, 242985404, 249693590, 303731755, 499387180, 607463510, 1214927020, 4070005517, 8140011034, 16280022068, 20350027585, 40700055170, 81400110340]

約数ペア:

[(1, 81400110340), (2, 40700055170), (4, 20350027585), (5, 16280022068), (10, 8140011034), (20, 4070005517), (67, 1214927020), (134, 607463510), (163, 499387180), (268, 303731755), (326, 249693590), (335, 242985404), (652, 124846795), (670, 121492702), (815, 99877436), (1340, 60746351), (1630, 49938718), (3260, 24969359), (10921, 7453540), (21842, 3726770), (43684, 1863385), (54605, 1490708), (109210, 745354), (218420, 372677)]